Peasy segfaults python3 based plugin

[sagarchalise]

This may be due to my limited understanding of C programming but I have a plugin that uses python3 directly. https://github.com/sagarchalise/geany-pyjedi

What it basically does is gives autocompletion feature based on jedi module rather than tags that geany originally does.

But if I try to use it with peasy enabled it gives me segfault.

P.S. Actually, if scintilla_send_message can be directly used then I may port this workflow to peasy. But I couldnot get it working and according to this discussion it may be quite difficult: codebrainz/geanypy#32

[kugel-]

scintilla_send_message can be used directly, but only for integer arguments unfortunately. For messages taking strings or other pointers we have work around. I think adding an override (see api/Geany.py ) could work

[sagarchalise]

@kugel- actually I tried scintilla_send_message with https://docs.python.org/3/library/ctypes.html. I couldnot find uintptr_t/intptr_t so I cast it to long but its not working. Its not crashing but nothing happens.

[kugel-]

I suggest you run geany in gdb, breaking in scintilla_send_message (perhaps with the condition set to your message id), and verify that the pointer is passed correctly.

Also, I'm confused. https://github.com/sagarchalise/geany-pyjedi is a C plugin isn't it?

[sagarchalise]

@kugel- yeah but if it does what I am trying to do, I would rather port it to peasy. I have those codes locally but since they are not working have not pushed them to github. Maybe I will push them to peasy branch in the same repo. The pyjedi C plugin crashed if I enable peasy. It seems due to python runtime

[kugel-]

Well, either you debug this or give me enough information so that I can try it locally. Perhaps give me your plugin or a reduced example case so that I can reproduce it on my side.

[kugel-]

I succesfully tried the following in the python terminal that is shipped with peasy (do you have discovered that already?). I've got the autocompletion list. Does that help you?

import ctypes
from ctypes import *

sci = Geany.Document.get_current().editor.sci
list = c_char_p("foo\nbar".encode("utf8"))
# cast to get the pointer value as int
list_p = cast(list, c_void_p).value
sci.send_message(GeanyScintilla.SCI_AUTOCSHOW, 0, list_p)

Closing with sci.send_message(GeanyScintilla.SCI_AUTOCCANCEL, 0, 0) works as well.

[sagarchalise]

@kugel- thanks I am giving it a try. I have just one question since python strings are unicodes can I use c_wchar_p on strings rather than c_char_p?

Also, the other issue I posted is not really working. I cannot get plugins to show from $HOME/.config/geany/plugins folder.
Also, I am using gtk3 build and not all plugins are showing in plugin manager. Modeline, doxygen and quickswitch are not showing.
Also, In the plugin manager, peasy plugins donot persist. i.e my plugins when I check on enable hide totally from plugin manager. They are enabled for that session but when I restart geany I need to reenable them. Also, I couldnot understand the hiding issue. This doesnot happen for all plugins but only for my custom plugins.

Also I get Can't load plugin: libpeasy.so.0: cannot open shared object file: No such file or directory in ubuntu when I build this. I have to manually link libpeasy.so.0 to /usr/lib folder to get this working.

[kugel-]

@kugel- thanks I am giving it a try. I have just one question since python strings are unicodes can I use `c_wchar_p` on strings rather than `c_char_p`?

Geany and scintilla work with utf8 internally, so you have to pass such a string. wchar_t is either utf16 or utf32. You can use Python to convert between those, though, if you need wchar_t. BTW, if this works out for you I would be interested in adding overrides to peasy so that known scintilla messages work out of the box.

Also, the other issue I posted is not really working.

let's keep the issues separate please.

[sagarchalise]

Seems to work.. thanks.
I will post other issues I have.
I think some of the issues are not really issues but my limited understanding of peasy